dragonpolls/scripts/poll.js
2021-04-17 13:39:45 +02:00

85 lines
2.8 KiB
JavaScript

window.addEventListener('DOMContentLoaded', () => {
displayLocalTimestamps();
for (const el of document.querySelectorAll('.option input[type=checkbox], .option input[type=radio]')) {
el.onclick = updateVotesRemaining;
}
const banner = document.querySelector('.banner');
if (banner) {
banner.onclick = hideBanner;
}
});
function displayLocalTimestamps() {
for (const el of document.getElementsByTagName('time')) {
const dateObj = new Date(el.getAttribute('datetime'));
const relDate = compareDateToToday(dateObj);
el.innerText = relDate === 0
? `Today, ${dateObj.toLocaleTimeString()}`
: dateObj.toLocaleDateString();
}
}
function compareDateToToday(date) {
const today = new Date();
if (today.getDate() === date.getDate()
&& today.getMonth() === date.getMonth()
&& date.getFullYear() === today.getFullYear()) {
return 0;
}
today.setHours(0, 0, 0, 0);
return today > date ? -1 : 1;
}
function updateVotesRemaining() {
const numChecked = document
.querySelectorAll('.option input[type=checkbox]:checked, .option input[type=radio]:checked')
.length;
const votesRemainingElement = document.querySelector('.votes-remaining');
const total = votesRemainingElement.dataset.maxVotes;
const remaining = Math.max(0, total - numChecked);
const plural = remaining === 1 ? '' : 's';
votesRemainingElement.innerText = `${remaining} Vote${plural} remaining`;
const voteButton = document.querySelector('button[name=submit_vote]');
const canVoteInitial = voteButton.dataset.canVote === 'true';
voteButton.disabled = !canVoteInitial || (total - numChecked) < 0 || numChecked === 0;
}
function hideBanner() {
//const banner = document.querySelector('.success-banner');
const banner = document.querySelector('.banner-wrapper');
const animationEnd = findTransitionEnd();
banner.addEventListener(animationEnd, animationEnded);
const rect = banner.getBoundingClientRect();
console.log('Setting height to ', `${rect.height}px`);
banner.style.height = `${rect.height}px`;
banner.classList.add('hiding');
}
function animationEnded(event) {
const banner = event.target;
const isPhase1End = !banner.classList.contains('resizing');
banner.innerText = '';
if (isPhase1End) {
console.log('Resizing');
banner.classList.add('resizing');
banner.style.height = '0';
} else {
event.target.removeEventListener(findTransitionEnd(), animationEnded);
event.target.classList.add('hidden');
}
}
function findTransitionEnd() {
const e = document.createElement('div');
const animations = {
'transition': 'transitionend',
'OTransition': 'oTransitionEnd',
'MozTransition': 'transitionend',
'WebkitTransition': 'webkitTransitionEnd'
};
for (const a in animations) {
if (e.style[a] !== undefined) {
return animations[a];
}
}
}